A new feature that logs all changes by administrators.
I would guess the output would look similiar to an Issue changelog

12/5/2003 15:23:45
UserA created project Foo (FOO)

12/6/2003 10:33:18
UserB Added user "UserC"
name: Joe Blow
email: jblow@foo.com

12/6/2003 10:33:52
UserB Moved UserC out of group "Jira-Users"

12/6/2003 10:34:12
UserB Moved UserC into group "Foo-Users"

12/7/2003 11:26:03
UserA set Character Encoding to "UTF-8"

12/7/2003 11:29:54
UserB created custom field "Severity"
Type: Select list
Values:
Sev 4 - minor
Sev 3 - minor
Sev 2 - major
Sev 1 - critical
Default
Sev 4 - minor
Scope: Global (all issues)

12/8/2003 6:16:19
UserA added service "Backup Service"
Class: com.atlassian.jira.service.services.export.ExportService
Properties:
USEZIP: Zip
DIR_NAME: D:\rocketrack\backups
Delay: 720

12/8/2003 6:17:48
UserA modified service "Backup Service"
Old Value New Value
Delay: 720 360